Samsung TV No Backlight Issue

[coolshrimp]

Brand: Samsung 460UXN-3 LCD TV
Model: LH46GWSLBC/ZA
Size: 46" Inch

I need some help fixing my TV i have here.

When you power on the TV the backlight flashes on for 1-2 sec, each time you change inputs it will flash again for 1-2 seconds again.
Then after about 30sec the tv will power off completely.

So the power board all looks fine visually and I tested all the voltages on the connectors with a multimeter they are correct.
I removed the Inverter board and the TV would stay on and not power off after a few seconds.
With the inverter board removed the tv is working i can use a flashlight against the screen and see the picture.

So i figured ok needs a new inverter board, i finaly recived a new one that i ordered online (SS1460_12C01), installed and the same thing.
Tv no longer powers off after 30 sec, but still only flashes backlight for 1-2 seconds.

so am i right to assume its the backlight bulbs themselves?
is there a way i can test the bulbs?
also can i simply disable the bad bulb once i figure out witch one?
id rather not take apart the LCD and risk damaging it completely.

[budm]

Re: Samsung TV No Backlight Issue

First, you always look at the control signals and the supply Voltages first before doing any board changing.
Since we do not have the TV in front of us to look at then you have ti supply us good clear pictures of the whole back side of the TV showing all the boards and then straight shot pictures of the boards that are clear enough for us to read the labels for each connectors on the boards.

[coolshrimp]

Re: Samsung TV No Backlight Issue

OK here are images.
http://s102.photobucket.com/user/coo...20Samsung%20TV

Like i said i tested all the voltages at the connectors coming out of the main power board and they read correctly as marked on the PCB.

The Built In PC on the right is working.
Inputs are working, as i can see image with flashlight as stated before.

[budm]

Re: Samsung TV No Backlight Issue

"Like i said i tested all the voltages at the connectors coming out of the main power board and they read correctly as marked on the PCB."
I see, so you are telling me that ALL the control signal are at correct Voltages and present?
You see, the DCV for the power may be correct but how about the control signal Voltages? Read the basic TV troubleshooting guide so you will understand what the TV needs to function.